{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "Leakage of mannitol into the brain parenchyma through an altered BBB and secondary reversal of osmotic gradient is considered the major cause of rebound ."}
{"Disease": [], "Chemical": ["mannitol"]}